JM-DATA ONU JF511-TV version 1.0.67 is vulnerable to cross-site request forgery (CSRF) attacks, allowing attackers to perform administrative actions on behalf of authenticated users without their knowledge or consent.

JM-DATA ONU JF511-TV version 1.0.67 uses default credentials that allow attackers to gain unauthorized access to the device with administrative privileges.

JM-DATA ONU JF511-TV version 1.0.67 is vulnerable to authenticated stored cross-site scripting (XSS) attacks, allowing attackers with authenticated access to inject malicious scripts that will be executed in other users' browsers when they view the affected content.